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High power dual directional coupler

high power dual directional coupler is a device that, in its most fundamental sense, enables one to direct and control the transmission of a signal to a specific point. This device comes in a few different flavors, some of which can even be used in the opposite of their intended direction of motion. These devices can also be used to combine many signals into a single signal.


Coupling coefficient

The coupling coefficient of a directional coupler is one of the most important qualities that it possesses. This ratio describes the proportion of the input power that is transmitted through the coupled port. This value is expressed in decibels (dB).

The frequency sensitivity of a directional High Power Attenuator coupler is an additional important feature of this type of device. This pertains to the maximum variation that occurs from peak to peak in the coupling coefficient across a specific frequency range. When it comes to swept-frequency measurements, this is of the utmost significance.

A directional coupler with three ports will have two input ports and one port that is isolated. The power that is supplied through the input port couples to the isolated port, which is subsequently put to use in the measurement process.

A directional coupler with four ports will have two input ports and two output ports. All of the output ports receive the power that is supplied through the input port. The ratio of the power in the input to the power in the output is the key to understanding the relationship between the two.

Why choose Hefei Topwave High power dual directional coupler?

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Return loss and isolation

Passive devices known as directional couplers combine signals traveling in the same direction in one direction alone, and then reflect those signals back into the output port. Its functionality depends on the accuracy of their design and fabrication.

Four different ports are possible on a directional coupler. Input can be received through Ports 1, 2, and 3. The output can be accessed through ports 2 and 3. A matched load is often utilized to serve as the port 4 termination.

high power splitter of 3 dB can be found in the coupler. This method of power distribution is referred to as the coupling factor. The turns ratio of the transformer has an effect on the coupling factor, which varies. Cable loss is another factor that can influence it.

A directional coupler's performance can be evaluated by looking at the coupling factor, which is expressed as a value in decibels (dB). The coupler insertion loss is reduced in direct proportion to the coupling factor. Having said that, it's possible that this isn't true across the full frequency range.

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